The Bx5921Bg-17 Diablo Spot & Track Light Has An Energy Rating Of A++ To A And Is A Switched Product (Pull Switch Located On The Backplate). Includes 1 X Integrated Led Bulbs Led 4W (Total Wattage) Non-Dimmable 3000K (Warm White). This Particular Product Has An Ip-Rating Of Ip20 (A Products Ip-Rating Indicates Where In A Bathroom Or Outside It Can Be Installed) & Has A Maximum Height Of 152Mm & A Minimum Height Of 152Mm. Its Width / Diameter Is 100Mm And Its Overall Length / Depth Is 141Mm. The Bx5921Bg-17 Is A Class 2 Double Insulated Light, Which Means It Does Not Require An Earth Connection. It Is Safe To Install On A Lighting Circuit Without An Earth Connection (Green & Yellow Wire).